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Commit adb3b1f3 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'parisc-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6 

Pull PARISC misc updates from James Bottomley:
 "This is a couple of minor updates (fixing lws futex locking and
  removing some obsolete cpu_*_map calls)."

* tag 'parisc-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6:
  [PARISC] remove references to cpu_*_map.
  [PARISC] futex: Use same lock set as lws calls
parents a75ee6ec 7ec6118c

arch/parisc/include/asm/futex.h

+27 −4
Original line number Diff line number Diff line
@@ -8,6 +8,29 @@ 
#include <asm/atomic.h>

#include <asm/errno.h>



/* The following has to match the LWS code in syscall.S.  We have

   sixteen four-word locks. */



static inline void

_futex_spin_lock_irqsave(u32 __user *uaddr, unsigned long int *flags)

{

	extern u32 lws_lock_start[];

	long index = ((long)uaddr & 0xf0) >> 2;

	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];

	local_irq_save(*flags);

	arch_spin_lock(s);

}



static inline void

_futex_spin_unlock_irqrestore(u32 __user *uaddr, unsigned long int *flags)

{

	extern u32 lws_lock_start[];

	long index = ((long)uaddr & 0xf0) >> 2;

	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];

	arch_spin_unlock(s);

	local_irq_restore(*flags);

}



static inline int

futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)

{
@@ -26,7 +49,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr) 


	pagefault_disable();



	_atomic_spin_lock_irqsave(uaddr, flags);

	_futex_spin_lock_irqsave(uaddr, &flags);



	switch (op) {

	case FUTEX_OP_SET:
@@ -71,7 +94,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr) 
		ret = -ENOSYS;

	}



	_atomic_spin_unlock_irqrestore(uaddr, flags);

	_futex_spin_unlock_irqrestore(uaddr, &flags);



	pagefault_enable();
@@ -113,7 +136,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, 
	 * address. This should scale to a couple of CPUs.

	 */



	_atomic_spin_lock_irqsave(uaddr, flags);

	_futex_spin_lock_irqsave(uaddr, &flags);



	ret = get_user(val, uaddr);
@@ -122,7 +145,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, 


	*uval = val;



	_atomic_spin_unlock_irqrestore(uaddr, flags);

	_futex_spin_unlock_irqrestore(uaddr, &flags);



	return ret;

}

arch/parisc/kernel/smp.c

+1 −2
Original line number Diff line number Diff line
@@ -290,8 +290,7 @@ smp_cpu_init(int cpunum) 
	mb();



	/* Well, support 2.4 linux scheme as well. */

	if (cpu_isset(cpunum, cpu_online_map))

	{

	if (cpu_online(cpunum))	{

		extern void machine_halt(void); /* arch/parisc.../process.c */



		printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum);